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Finding the Fourth Proportional to 61,630.40, 92,459.46 and 19,513.01

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Solution

The fourth proportional to 61,630.40, 92,459.46 and 19,513.01 is: 29,273.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,630.40 : 92,459.46 = 19,513.01 : x
  2. Step 2: Convert to fraction form
    61,630.40/92,459.46 = 19,513.01/x
  3. Step 3: Cross multiply
    61,630.40x = 92,459.46 × 19,513.01
  4. Step 4: Simplify right side
    61,630.40x = 1,804,162,671.90
  5. Step 5: Solve for x
    x = 1,804,162,671.90/61,630.40
  6. Step 6: Final answer
    x = 29,273.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.